RASTER GRAPHICS EDITORS

A raster graphics editor is a computer program that enables users to paint and edit pictures interactively on the computer screen and save them in one of many popular “bitmap” or “raster” formats such as JPEG, PNG, GIF and TIFF. Typically an image viewer is favored over a raster graphics editor for viewing images. Some editors specialize in the editing of photo-realistic images like the well known Adobe Photoshop, while others are more focused on artist-created illustrations such as Adobe Fireworks.

Common Features of a raster graphics editor include:

• Selecting an area for editing


• Drawing lines with brushes of different color, size, shape and pressure


• Filling in a region with a single color, gradient of colors, or a texture


• Choosing a color using different color models (e.g. RGB, HSV), or by using a color dropper


• Adding typed letters in different font styles


• Removing scratches, dirt, wrinkles, and imperfections from photo images


• Composite editing using layers


• Editing and converting between an assortment of color models


• Applying various filters for effects such as sharpening and blurring


• Converting between a mixture of image formats

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